Peat-burner.



F. MOENCH.

PEAT BURNER.

APPLIGATION FILED MAY 4, 1911.

Patented Aug. 15, 1911.

Witnesses Attorn eys To alljtuhom'it may concern:

resonator: vr onlvcn, or Lnsnnun CENTER, MINNESOTA.

rnAr-Bumvnn.

- Specification of Letters Patent. Patefited Aug. 15, 1911.

Application filed May 4, 1311'. Serial No. 624,925.

Be it known that I, FREDERICK MOENCH, a citizen of the United States,residing at Lesueur Center, in the county of Lesueur and State ofMinnesota, have invented a new anduseful Peat-Burner, of which thefollowing is a specification. v

It'is the object of the present invention to provide a furnace of noveland improved construction, in which peat, or' any other combustible'material, may beburned, to

raise the temperature of a coil withilrthe furnace, through which coil,the heated fluid is pumped, a forced feed thus being provided,whereby-the furnace may be located at considerable distance from thebuilding to be heated. J

A further object of the invention is to provide a novelform ofheat-interchanging element, adapted to be interposed into a cir theinterchanging element" culatory system, being so constructed that it maybe used .either as a heating structure or as'a refrig erating structure.

A further ob ect of the invention is to provide a novel form of furnace.

'With the foregoing .and other objects in view which will appear as .thedescription proceeds, the invention resides in the combination andarrangement. of parts'and in the details of construction hereinafterdescribedandclaimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the'scope ofwhat is claimed without departing from the spirit of the invention.-

In the 'drawing's,Figure 1 shows the invention in vertical longitudinalsection,

parts appearing in elevation; Fig. 2 is a sectional elevation; and Fig.3 is a fragmental perspective showing a portion of the 7 supported.

the casings 9, and

a deada'ir space Lbetween them,

furnace, I :walls of the furnace.

may be fashioned of any desired material;-

interior' of the furnace, together with the grate, and the'means wherebythe grate is The furnace is denoted generally by the numeral 1, andcomprises inner and outer casings, denotedby the numerals 2 and 3,- 3being separated, to form this dead air space 4 extending across thetop'of the and aboutthe same in the upright The casings 2 and 3preferably, brick is employed in their construction.

Secured to the upright walls of the inner desired constructi on.

casing 2, relatively nearxt o the bottomof the furnacel, is an openframefi. the'frame 5 preferably being fashionedfrom angle .members, theupright flanges of which are secured to the inner. casing2', thehorizontal flanges of these angle members projecting inwardly into theinterior of the furnace. This frame constitutes a support for the grate,denoted generally byithe numeral 6.

-The grate 6 is in the form of a sinuous pipe,

extending backwardly and forwardly, across the furnace. As denoted by'the numeral 7 ,ftheends of the several convollr tions of the pipe grate6, rest upon the frame 5, the outermost convolutiqns of the grate 6resting upon the frame 5, throughout their entire extent, and aldng: thesides of the furnace, as denotedby the numeral 8 The sinuous pipe whichforms. the grate 6' is carried upwardly, in; superposed convolutions,along the sides 'ofsthe furnace, as shown at 9, the convolutions 9beingcarried acrossthe top of the furnace, in the interior thereof,.- asshown at 10. Theconstruction,

therefore, is such that there is a continuous, sinuous pipe line withinthe furnace, ex-

tended entirely around the furnace. in the interior of the same,

to define-a fuel chamber l1.

- Access is had to the-fuel chamber 1lthrough a hinged mounted stokedoor 12, the ashes being removed from beneath the grate portion 6.0f theheating pipe, through an ash door 14 hinged't-o'the outer casing 8 ofthe furnace. supplied with suitable da1npers'15, of any Communicatingwith the fuel chamber 11,-is the stack 16'.

The pipe coil which lines the entire inner.

face of the furnace, transversely, communicates with an inlet pipe 17and with an outlet pipe 18. These pipes '18 and 17 as will beunderstood, communicate with each other, o

so that there is acontinuous circulation through'the pipes 17 and 18,and through the ,coil wherewiththe furnace 1 is 'linedin its interior.In the drawings, for the purpose of economiz ing space, the pipes 17 and18 have 'beenbroken away, but the continuous circulation above referredto, and af- The doors 12 and 1 1 may be forded by the pipes 17 and 18and by the coil which'is within the furnace 1, will be readilyunderstood. 1 I

' Interposed into the circulatory system, at any suitable point therein,is a tank 19' or the. like, whereby the circulatory system may be filledwith the liquid which is to be heated. Interposed in the outlet pipe 18,is

.a'pump 20, the pump '20 being preferably,

of the rotary type, the pump being operatively connected with a primemover, in the present instance, shown in the formof an electric motor21.

The practical operation of the device is as follows. Through the openingclosed by the door 12, peat or other, fuel may be introduced into thefuel chamber 11, the fuel resting upon thegrate portion 6 of the pipecoil, the fuel being stacked up, to any desired extent,'aga inst theside portions 9 of the pipe coil. lVhen the fuel which is with-- in thechamber 11 is ignited, it will be seen that the pipe coil will be heatedto a high degree, raising the temperature of the liquid which is withinthe pipe coil. When the pump 20 is put into operation, the heated' theconstruction of the device is such that the furnace 1 maybe placed at aconsiderable distance from the building to be heated, the pump 20serving to force the heating medium through the circulatory system. Atthis point it may be stated that the specific location of the pump 20 inthe cir- 'culatory system, may be'varied to suit the V exigencies of theparticular case. It is to be noted, moreover, that in Warm Weather,

the chamber 11 may be filled With ice, the a device operating, in themanner hereinbefore described, the pump 20, however, servingto cause acirculation of a cooling medium, in-

stead of a heating medium. Under such circumstances, the device acts asa refrigerating plant. W Vhen the structure is employed forrefrigerating purposes, a suitable drain23 may be placed in the bottomof the furnace 1, to lead away the drip from the ice which is Within thefurnace structure.

I-Iavin'gt-hus described the invention,what

is claimed is In a device of the class described, a furnace comprisinginner and outer casings, separated, to define a dead air space betweenthem; a centrally open frame securedto the inner casing;

trally open portion of theframe, to constitute the grate ofthe furnace,the pipe a sinuous pipe coil supported upon the frame and extendedacross the cen-' coil being continued in'sinuous form, along thesid-esof the furnace and-across the top of the furnace; a circulatorysystem of which the pipe coil constitutes a part; a pump in thecirculatory system a motor for operating the pump; and an element in'the circulatory system, whereby the fluid to be heated,-may beintroduced into said system.

In testimony that I claim theforegoing as my own, I have hereto affixedmy signature in the presence of two? witnesses.

- FREDERICK MOENGH;

,Witnesse's:

LOUIS L. MoENoH. C. E. KOLARS.

